An ICP-MS study on metal content in biodiesel and bioglycerol produced from heated and unheated canola oils: Environmental science and pollution research international

Rukayat S. Bojesomo, A. Raj, Mirella Elkadi, M.I.H. Ali, S. Stephen

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This study addresses the challenges of biodiesel production costs and waste oil disposal by investigating the use of low-cost waste oil as a feedstock. The impact of heating temperature on biodiesel yield and trace metal levels is examined using response surface methodology (RSM). Optimal conditions for high biodiesel yields (95-98%) from canola oil are determined with a methanol/oil ratio of 12:1, 1 wt% catalyst, and 60-min reaction time. For crude bioglycerol, the optimal conditions involve a methanol/oil ratio of 4.25:1, 2.93 wt% catalyst, and 119.15-min reaction time. Elemental analysis reveals the presence of high-concentration metals like Cu and Zn and low-concentration ones such as Pb, As, Se, and Zr in both oil feedstocks and their respective biodiesel and bioglycerol products. The study demonstrates that thermal stress on canola oil significantly impacts biodiesel and bioglycerol yields and trace metal levels during the transesterification process. The findings contribute to enhancing cost-effectiveness and environmental sustainability in biodiesel production. © 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
Original languageBritish English
Pages (from-to)115064-115080
Number of pages17
JournalEnviron Sci Pollut Res Int
Volume30
Issue number54
DOIs
StatePublished - 2023

Keywords

  • Canola biodiesel
  • Elemental analysis
  • FTIR
  • Response surface methodology
  • Thermal effect
  • Trace metals
  • Waste cooking oil
  • Biofuels
  • Brassica napus
  • Catalysis
  • Esterification
  • Methanol
  • Plant Oils
  • Rapeseed Oil
  • biofuel
  • methanol
  • rapeseed oil
  • vegetable oil
  • catalysis
  • esterification
  • rapeseed

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